美国断供古巴航空燃油，再次证明当初研发航空燃油，有多么正确

Group 1 - The U.S. has intensified its oil blockade against Cuba, leading to a critical shortage of aviation fuel, which threatens the operation of international flights and the overall economy of Cuba [1][2] - Cuba's economy heavily relies on tourism, generating over $3 billion annually, which is essential for purchasing food, medicine, and fuel [1] - The blockade has caused Cuba to lose its primary sources of oil from Mexico, Venezuela, and Russia, complicating its fuel supply situation [2] Group 2 - In response to the fuel crisis, Cuba may need to explore alternative solutions, highlighting the importance of self-sufficiency in aviation fuel production [4] - China has successfully developed its own aviation fuel technology, overcoming previous reliance on foreign sources and achieving significant milestones in production and certification [4][6] - By 2022, China had established itself as a leader in sustainable aviation fuel production, meeting both domestic and international standards, and demonstrating the effectiveness of its self-reliance strategy [8][10]